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201.0 Aluminum vs. EN 1.4017 Stainless Steel

201.0 aluminum belongs to the aluminum alloys classification, while EN 1.4017 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 201.0 aluminum and the bottom bar is EN 1.4017 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 4.4 to 20
14
Fatigue Strength, MPa 120 to 150
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 290
350
Tensile Strength: Ultimate (UTS), MPa 370 to 470
580
Tensile Strength: Yield (Proof), MPa 220 to 400
390

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 570
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 120
30
Thermal Expansion, µm/m-K 19
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30 to 33
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 97
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 38
9.5
Density, g/cm3 3.1
7.7
Embodied Carbon, kg CO2/kg material 8.7
2.2
Embodied Energy, MJ/kg 160
31

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 63
71
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 1160
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 33 to 42
21
Strength to Weight: Bending, points 37 to 44
20
Thermal Diffusivity, mm2/s 45
8.1
Thermal Shock Resistance, points 19 to 25
20

Alloy Composition

Aluminum (Al), % 92.1 to 95.1
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 4.0 to 5.2
0
Iron (Fe), % 0 to 0.15
78.3 to 82.8
Magnesium (Mg), % 0.15 to 0.55
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Nickel (Ni), % 0
1.2 to 1.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Silver (Ag), % 0.4 to 1.0
0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0.15 to 0.35
0
Residuals, % 0 to 0.1
0